Speed-changing gear.



A. SENGER.

SPEED CHA'NGINGG. GEARa APPLICATION HLED APR.5,1915

l 1 77,282 Patented Mar; 28, 1916.

- 3 SHEETS-SHEET l.

Q) 55 l v 94 I 5293 6 L i o 520,33 9 009 E Zzz 25 J L A. lJ. SENGER.

SPEED CHANGAING GEAR. APPLICATloN FILED APR. 8, 1915.'

1,177,282. Patented Mar. 28,1916.

3 SHEETS-SHEET .2.

A.- J. SENGER.

SPEED CHANGING'GEAR. APPLICATION FILE AP-'n.., |915.

15177282. Patented Mar. 28, 1916.

. 3 sHEETs sHEET 3.-

F/e. @i Q5 J-Senefl UNITED sTATEsrxTrzNT orrion.

"a ioitiienmoffthe United States, residing at inem: and. 1 useful?? Improvements ,in Speed- ChanginguGear, f which 1the following is "aws'pecicati'onf y` Thislfinvention*relatesto improvement yin changespeed gear mechanism Vfor motor .drivenfiveliicles, 1 and more; specifically pertains .to the `form krioivn 'as the direct "driven j .()xie of? the' objectsf of Vthe ,presenti inven- .tion'sisi the aproyision of longitudinally slidi ablle gears "mounteduponlthrearaxl `and adapted tou Abey xnoved f''predetei'mine(lV `distances or y l y speed inions ivhiclr are provided with suit- 201ablecliutchesfoi-"connecting with the engine .4 Awfurt'lieral'id important object of this inii'ention i to' provide `a plurality 4'"oflsliding boxes, ea 'chi containing a speed pinion of dif- `ferentsize, namely,flirst, second, third'and ,reversespeedsgsaid pinions Adesigned to en#` gageuvithqgears on the r'earf axle` for impartingfmotionto the. Vehicle@ L y Still another `object is to providea "mechgoyanism of this charactervhich issimple in 4construction,easy to operate andA positive,l

-in,g.-i,ts operation. i f 1 With these and other objects and advan` tageszyin view,"` the `invention consistsin the preferred construction and arrangement of partsivljiichqwill be more fully. hereinafter desenibedand claimed and subject to lsuch variatiellias fairlyfallWithin the scopeof the claims., l A

, 1.1.1 1 In saiddraivings, Figure 151s a longitudiis, i .verticallongitudinal section of thein'- y Ii'g. ,5 isI applanpviexvof *thek rack` and 'p on.` mechanismV fon sliding the gears Inodifiedform of the? invention. 1.

' f n SPEEDCHANGING GEAR.

proper engagement with different n showing thev lsliding box construe! nd 2 its Aoperating means; Fig. 1s `a fr t eleyation `oftliefe'nale clutch lmem` JANTHONY trbsnienn; 0F snurAlANA, CALIFORNIA.

f yf specification of Leter'srat'ent.; Patente-MMM, 23, 1916-, ry.iilipiiafcioninedjiipiil8,1915. serial No. 19,865.

12,v end 'members 13 `and 14, and suitable top and bottom members not shown.

` A r y yThis housing contains a suitablelubricant SantafAna'g inthe county'of `(Drange and f 5 TStateof/"Cali-forniaf, haveinventedcertain l.

for the mechanism, and theside members I1l` and 12 thereof areprovided `with open- 4i'ngsthrough `which the axle 17vextends.

This-,axleis provided with lthe usual form of differential gears (not shown). `18' indicates a tubular casing surround- 65 ing `the axle and differential gears, and

rigidly connected to the axle by means of a key 19. Said casing 18 is provided throughoutits entire length with an exteriorly lonvgitudinally extending groove 20, e the pur- 70 vpose of which Will be described hereinafter.

Surrounding the casing 18,. and longitudinally slida'ble thereon is a. sleeve 21 upon u'liich'are rigidly mounted gears 22, 23, 24 and 25. This sleeve 21 is provided With a 75 ,key 26 adapted to loosely-engage With the airack bar 30 which is secured to the side members 27 and 28 by any suitable means,l the purpose of said bar will be described hereinafter..

To the' 'front edge of the frame 21, is secured a member 31, the purpose of which is to support a series of sliding boxes 32, 3 3,`

and 35. 1 'Y 95 36' and 3 7 indicatetwo .stationary longitudinally disposed cross bars extendingnbove andbelow respectively `of the member. 31, and Veach-` provided throughout its length with longitudinal` grooves 38 and39, and 100 having transverse grgoves 40.,'and 41 inter-v 4mediatetheir ends, said transverse grooves extending approximately one-half` of the Width thereof. Y f

To onev end of each ofthe sliding boxes 32, 33,5134 and 352.21my attached plates 42. 43, 44 i andv 45 thejupper and lower extremities' of whichl extend above and below the sliding boxes, and arefadapted to' project intothe grooves 38and39 so as to'allow the sliding 110 boxes to move longitudinally, butpreventA any transverse movement.` Each off these y sleeve 62. v

-' `hicle and Aat its forward .When expanded and designed aiding boxes 32', 33, 3i ana 35, carries a shaft46, 47, 48, 49, respectively, which 1s provided on one en d thereof With a diHe'rent 52, representing 1st, 2nd, 3rd and reversev speeds respective-ly,l which are adapted toengage with the gears speed pinion 50, 51,

22, 4 23, 24, 25, and on the opposite' end is formed female clutch members 5 4, 55, 56, 57.

58 represents the drive shaft from the engine extending through the front end Wall 14 'of the frame, and providedwith a squared off portion 59 on its end upon which is slidably mounted a collar., 60. This collar 60 is formed 'integrally with 'a male clutch memberI 61 and' is `vertically extending 'fro1'n" the top and bottom of said collar60,qare pins GS -vvhich are adapted to connect the collar with a clutch operating'memb'er 64, thepurpose of which is to ivithdraw the clutch 61 from engagement with either 'of the clutches 54, 55, 56 and 57 When desired. One end of the member 64:: is pivotedatGlto the front portion 14 'of the frame and tothe other end thereof is connected one end ofl a lever 66 Which exte'ndstowardl the front of the veextremity is connected with a foot lever 66. Interposed between the member 64 and the front portion 14 -of the frame, is a spring 67 adapted to normally hold the clutch 61 in engagement with one ,of vthe clutches 54, ,55, 56 and 57 the .said clutches when contracted.

68 lindicates a member, transversely slid'- able with respect tofthe member 31, for engaging and .disengaging the pinions 50,51, 52, 53 With the gears 22, 23, 24, 25. This device .comprises a frame portion 69 extending through an opening'70 member 64 and a pertionf; 71 rigidly connected with said portion 69.4 Each oftheI portions 69 and 7l is construted from a single'piece of metal and comprise U-shaped frames which are rigidly united togetherirb'y means of aspot Welded joint 72. The portion 69 o f this device is slidably mounted i on thesqua-red off portion 59 o f the shaft 58, and the end plate 78A thereof is. adaptedto form a stop for the slidable collarGO-f, spring 74 being 'interposed between the 'plate 73 and the front member 14 of the cas-4 purpose y of cushioning the ingvlO for the said device 68; v The portion 71-of` the vmember 6 8v isgprovided the member 68 is in its inoperative position, with the grooves 38and inrthe crossbars 36 and :37, and, when l1n its operative posi.-

-,tion,'adapted to slide into the transverse y1 'frooves'.40, 41 in said cross bars 36and 37. In operation,

43, 44, attached to the connected thereto by a' the ordinary be understood that upon to disconnect' provided inthe with loh, fitudinall vY extending chan-J 4nels orv grooves 75 designed toregister, When` these grooves 75 areA designed "to receive' the projecting ends ofthe plates 42,

slidingboxes 32,355,34, and allow said sliding boxes to move4 transversely backward and forward, thereby causing the pinions 50, 51,' 52, 53 to engage and disengage with the gears 22, 23, 24, 25. This portion 71 is also provided adjacent to said grooves with longitudinally disposed flanges 77 and 78 adapted tocontact with andislide upon the top and' bottom portion of the member 3l for the purpose of maintaining the Imember 68 in a true horizontal pos`itio n=, 'so,thatthe grooves 75 in said port1on 71 will always properly register With-the grooves38'and 39 in`l the Cross bars 36 and The foot lever66, to'which is connected one end of the clutch operating/lever 66, is

pivoted. to la. brace -79 4depending from" the bottomof the vehicle frame, and said lever 66 is connectedby suitable leverage 80 to clutch 81 which connects the driveshaft58 withthe engine 82. It will exerting pressure upon thisfoot lever 66 the clutch 81 by means of the leverage will disconnect the shaft58 from the engine 82, andy will also4 Withdraw vthe clutch 61 from engagement With the clutch. 56. through themedium of the clutch operating member 64, ,whereby the shaft 58 will be free from any power from the engine, and the vgear shifting may take p1ace without danger of injuring, or stripping the teeth of the gears. It will also be readily seenthat vuponl removing the pressure from the lever 66 the clutch 81 Will be thrownv in -to connect the drive shaft 58 with the engine 82, the clutches 61 and 56 will engage With' each. other, and bv means ofthe pinions'50, 51, 52, 53 and-the gears 2 2, 23, 24, 25, motion will be imparted to the vehicle] l V -Y 83 indicates a slot inthe floor of the vehiclethrough which-'the lever 66 is designed to extendand reciprocate, said slot being provided with a notch 84 into which the lever 66.is'adap'ted to be engaged for ion 86meshing -vvith the. rackBO andto the I.other end thereof is fastened `a beveledgear 87 meshing with teeth onza half moon quadsL rantSS. This shaft is supported in brach-1= Y ets 89, 90. which are fastenedft'o the" flo of the vehicleyand to the top of the cro lrlarv36 respectively. 'y The quadranti-38 is rigidly secured tom h a usual form ofspring catch `92, adapted to engagewith,notches 93`on a vquadrant y94 fastened by suitable means to Itheframe of namely, first, second,

third and reverse speeds.

extending we flower extremity 'o f'a' gear shifting lever' 91 which is provided with i `In` operation, assuming that the foot lever 52 is engaged in the notch 84, 'it Will be read ily Qunderstoodythat none of 'the operating parts are connected.:` .To impart motionfto the-vehicleythelever 91 isiirstinoved adj `a centkjto'the proper notch marked 1J, =indic`a`t' ing 1 the;` yfirst speed, such 'movementf through the, operation oitl the-quadrant 88,1Igearw87,

v shaft` 85 and pinion 286 will slides the 'frame 21fwhich carries the gears 22, 23,` 24, '25, and the member i 31ccontaining the lsliding boxes 1,32, 33, 34,35 invvvhich are "mounted the, jpinions v50, 51, 52,1 53 and the `clutches 5,4, 55, 45,6, "57,' ltheproper# distance vso as to bringvthe clutch'member- 54 in alinement for engagement with the-f clutch member 61. Thisbeing done, the foot lever 52 isthenreleased from engagement `With the notch v84,

-. and through theractionof the spring `67, the

clutches` 54 andj161ware kconnected together." Farthermcre, Vaan the :Clutches 5i and' ci have been connected, this spring 67` serves to, force lthe me1nber168=ginto the` transverse i slots 0 ,and 41, Acarrying. therewith the/slid`` monnted therein whereby said first 'speed'.

pinionliO" will" mesh ,with the ,gear `221 on' they reana'xle, and A`thereby impart motionjto `the'` vehicle., flheiopera'tion `just described' isi adapted, @to .start, the i vehicle` on` iiirst speed,

I anduto change t-he speed to `second and 'fuis therto thrdior to reverse thefmovement of the vehicle, thisl operationis repeated,lex`cept in is `not necessary Ato engage the lever 66"` inthe notCh Whenilchangng speeds-as the noth. is `1 fore .thee purpose` of holding the" clutches out` of engagement sothat the en# gine may y run `While the vehicle still. u

y JInligsft`J` and 7 is shown avmodiiied z form of the `present invention which operatessimilar itc )the` before descbed construction; 1 In said figures, 95 indicates aicasingforwthe.` 'mechanism. ,Supportedfibyr roller bearings 964and197, in said casing95 arertwohalf axles 98` and 99 yvhich are connected yWith `a--usual i form offdiiferential geari100. 1 01.` indicates n a `,ho,usilnlg-,forfthis differential gear "100,- and1 is" rotated therewitlnby` means of'its "connec-` tion with' gears 102, 103ofA ksaid `differential gear. Suitably'keyed to, andxflongitudinally slidahle "upon y this housing 101, are, provided gears`104 and 105, the firstnamed representing the forward speed gear andthe latter mentioned the reverse `speedfgear` respectively. These gearsj04andl105v are normally p held in theirfinperative position by means-f` ofvsprings 106andv107 Whichencircle the" housing 101. .Integrally lformed on the rear surface of each of these gears 104and 105,

are lugs 108 and 109 which are provided- With inclined faces 110 and 111, and ad- A jacent to said lugs 108 and 109, keys 112 and 113 are provided. Each of these keys 112 and 1131s provided with an inclined is standing face 114 and 115 which corresponds to the 'degree of inclination ofthe faces` 110 and 111 of the lugs 108v and 109, and to each of said keys 112 rand 113 are attached levers 11.6 and" 117 .for operating said lugs. -Slidably mounted in the'casing 95,`are a series of sliding? boxes`118, 119 and 120 Which contain shafts 121,122 and 123, to one end of which are secured speed pinions 124, 125, and 126 and to the other extremities are attachedufemale clutch members 127, 128and 129.; *130 indicatesl a rack which is lengaged bya `pinion 131,`adapted to be` operated by suitablel mechanism as shown by numerals 85, SfandV 88 in Figs. V1 and 3 foi' sliding the boXesl118,119vand 120 tothe desired position so that thegears 104 and 105 and pinions 124, `125 and 126 may mesh, and also to connect the clutches 127, 128 and 129 With a male clutch 132, Whichis slidably mounted on the drive shaft 133.` Pivoted at1`34 to the casing 9,5, is aclutchuoperating lever1\135,"vvhich is' swiveled at 136 to the clutch `member 132.` To this lever 135`is connected a rod135 which extends to the forward end of the'car and is' attached to a foot lever similar-to that shown at 66 in Fig. 1, and is adapted todisconnect either .of'the clutches`127, 128 and 129 from engagement with the clutch member 132 when sodesred;` Aspring 141`is interposed betvve'en'the lever 135 Aand the casing 95 for the purpose of forcing said pinions 124, 125 and ,i 126into engagement With the gears 104 and 1 For the purpose of returning the pinions 121, `122and 123 to their normal or inoperative position, after being engaged with the gears 104' and 105,' a spring 137 is provided, one 'being employed for each 'of the'sliding 105 boXes 118,119'and 120i This spring is fastened at `138 to one end of the sliding box, and at its other end is attached to a lug 139 projecting from the casing 95, which lug is` adapted to engagel -in a slot 140. formed in 11u the slidingboxes, thereby allowing said sliding boxes to reciprocate. l i

1nv operation When itis desired to start theivehicle at 'first speed rate the lever 116 is first operated to exert a pulling eli'ect on 115 the `key 112 and thereby, owing to the in- 1.clined faces 110and 114 of the lug 108 and keyy 112 respectively, force'the gear 104 into operative position. This being done, the sliding boxes carrying the vpini' s' 124, 125 120 and 126 arekoperated meansrof the rack ,130 and pinion 131 so as to bring the pinion 124in'tooperating position, when the clutch `membe`r 135 is actuated to connect the clutches127 and 132 and by means of the 125 spring 141 the pinion 124 is forced into e11- gagement With the gear 104 whereby the car xis started. To change the speed of the'car to second, third or reverse the vmotion of the car, this operation is repeated.

vehicle, a franie-fattached to said sleeve and slidable therewith, a second frame -attached said drive shaft, and means, comprising a- I claimr- 1. In a changespeed gear mechanism, the

- combination of gears mounted to slide on the i'ear axle of a -vehicle,-means for sliding said gears, a drive shaft, a clutch mounted on plurality of'sliding boxes each containing 'a speed pinion; ashaft, anda clutch member, for connecting said drive shaft with said gears.

Tn a change speed gear mechanism, the

lcombination of gears slidably mounted o n the axle ofy vehicle, means comprising a lrack and pinion for sliding sa 1d"gears',xa

drive shaft provided with a squared oil portion, a `clutch slidably mounted on said pinion formed on one of its ends for engagement with sa'i'dgears, and a clutch 'member formedlon itsother end for connecting with said clutch on the drive shaft, means for supporting said sliding boxes,'and means -for operating said slidingboxes.

In a change speed gearmechanisni, the

" combination of a'series of gears mountedony a sleeve slid-ably mounted on vthe axle of a to the forward edge of said iirsty mentioned frame for supporting 'a series vof sliding boxes, each carrying a speed pinion adapted to engage with said gears,a shaft, and a clutch member, 'cross-bars arranged aboye and below the second named frame respe'c tively, said cross bars being provided with? longitudinal andtransverse grooves, a drive f shaft, a 'clutch slidably mounted on said `drive shaft and designed to.r engagewith the clutch member carried by said sliding boxes, and means, for operating theslidingboxes and` engaging in 'said grooves in said cross'- barfs, for connecting th'edrive shaft with 4.. In a change speed Igear mechanism, the combination-of a series-of gears mounted on a sleeve` slidablymounted on the axle of a vehicle, a fiame'attachedtosaid` sleeve and slidable threivitlnfa second frame attached to the forward'edgeof said irstinentioned frame for 'supporting'.a lseries of sliding clutch member, cross-bars arrangedabove and below the second named frame respectively, said cross-.bars 'being provided with longitudinal and-transverse grooves, a drive shajft, a' clutch slidablyy mounted on said drive shaft and designedto engage withk the clutch member carried by saidl sliding boxes,

and means, for operatingthe sliding boxes and engaging insaid grooves in said cross-v bars,- for connecting the drive l shaft withl the gears, said means comprising a plurality cfu-shaped members rigidly fastened together, one portion thereof being provided with an openingv for the reception of a clutch operatingr device, and the other portion being formed with channels adapted to receive a plate on the enddof one of the sliding boxes forr'operating the same.v

5. In a change speed gear mechanism, a drive shaft, a driven shaft, gears slidably` mounted on said driven shaft, means finter-j posed between said drivelshaft `and ysaid gears for connecting' thefsame, and-means for sliding said-gears, said means comprising. arack adapted toslide the gears, a 'shaft provided on one end with a pinion designed tooperate said rack,- and'on they other end drive shaft.. a driven shaft, slidingboxes interposed vtherebetv'veei'i for connecting the saine, `means for operating .said sliding? boxes, a. clutch .slidably mounted on 'said drive shaft, a cllarintegrally formed therewith and pins .extending fromsaid collar" and throi'lghopenings' providedA in the slid?A ing boxoperating means, for connecting Awith a clutch operating meansf' In testimony whereof I afiix my signature in presence of two witnesses'.

ANTHONY?. s ENGEii.

M; H.- M. iva-asm,

vWitnesses: f boxes, eacri cari-'ying a speed pinion adapted :to engage ivi-tn -sail gears, a shaft', anda tive Acents each, addressingfthe VCcmmissi'oner otrateiitl, 4 

